In order to investigate the mechanism of rail corrugation on small radius curves, a three-dimensional wheelset-track thermal-mechanical coupling finite element (FE) model was developed. Friction coefficients are modeled in consideration of the wheel-rail contact temperature effects. The dynamic response of the wheelset-track system is investigated by transient analysis on a curved track with a radius of 350 m. The results show that the wheelset-track coupling dynamic system exhibits lateral stick-slip motion on the wheelset-low rail. The wheel-rail lateral creepages have obvious periodic fluctuations with dominated frequencies of 410 and 1045 Hz, In addition, The dominated frequencies of the wheel lateral vibration velocity on contact point as well as the dominated frequencies of lateral force are similar to dominated frequencies of the creep force. During a stick-slip process, the maximum temperature of the wheel-rail contact patch temperature increases with the creepages. The percentage of sliding region within the contact patch increases from 77.1 to 100%. The stick-slip vibration of the wheelset-low rail may lead to the occurrence of rail corrugation, which corresponds to wavelengths of 40.6 and 15.9 mm.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Analysis of the Mechanism of Rail Corrugation by Using Temperature Dependent Friction Coefficient


    Additional title:

    Lect.Notes Mechanical Engineering



    Conference:

    International Workshop on Railway Noise ; 2022 ; Shanghai, China December 07, 2022 - December 09, 2022



    Publication date :

    2024-02-24


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Experimental study on mechanism of rail corrugation using corrugation simulator

    Suda, Y. / Komine, H. / Iwasa, T. et al. | Tema Archive | 2002


    Experimental study on mechanism of rail corrugation using corrugation simulator

    Suda, Y. / Komine, H. / Iwasa, T. et al. | British Library Conference Proceedings | 2000


    Rail corrugation

    Gidanski, Charles M. | Engineering Index Backfile | 1913


    Rail corrugation

    Fell, A.L.C. | Engineering Index Backfile | 1907


    Rail corrugation

    Morgan, H.H. | Engineering Index Backfile | 1941